* Add Frame
# From the above picture, we can see that when you launch a context menu to add a keyframe, CocoStudio adds a small gray ellipse flag to indicate the keyframe.
# You can also add a keyframe by clicking the top left button.
* Delete Frame
As shown in the above picture, when you delete a keyframe from the context menu, CocoStudio deletes the small gray ellipse flag.
* Adjust Frame
Select the gray ellipse flag to adjust your keyframe’s position.